import { Injectable } from '@angular/core';

import { Observable } from 'rxjs';
import { map, take } from 'rxjs/operators';

import { ProtocolService } from '@ucap-webmessenger/protocol';
import {
  SVC_TYPE_INFO,
  SSVC_TYPE_INFO_USER_REQ,
  SSVC_TYPE_INFO_STATE_REQ,
  SSVC_TYPE_INFO_USER_OPTION_REQ,
  SSVC_TYPE_INFO_USER_OPTION_UPD_REQ
} from '../types/service';
import {
  UserRequest,
  encodeUser,
  UserResponse,
  decodeUser
} from '../models/user';
import {
  StatusRequest,
  StatusResponse,
  encodeStatus,
  decodeStatus
} from '../models/status';
import {
  UserOptionResponse,
  decodeUserOption,
  UserOptionUpdateRequest,
  encodeUserOptionUpdate,
  UserOptionUpdateResponse,
  decodeUserOptionUpdate
} from '../models/user-option';

@Injectable({
  providedIn: 'root'
})
export class InfoProtocolService {
  constructor(private protocolService: ProtocolService) {}

  public user(req: UserRequest): Observable<UserResponse> {
    return this.protocolService
      .call(SVC_TYPE_INFO, SSVC_TYPE_INFO_USER_REQ, ...encodeUser(req))
      .pipe(
        take(1),
        map(res => decodeUser(res))
      );
  }

  public status(req: StatusRequest): Observable<StatusResponse> {
    return this.protocolService
      .call(SVC_TYPE_INFO, SSVC_TYPE_INFO_STATE_REQ, ...encodeStatus(req))
      .pipe(
        take(1),
        map(res => decodeStatus(res))
      );
  }

  public userOption(): Observable<UserOptionResponse> {
    return this.protocolService
      .call(SVC_TYPE_INFO, SSVC_TYPE_INFO_USER_OPTION_REQ)
      .pipe(
        take(1),
        map(res => decodeUserOption(res))
      );
  }

  public userOptionUpdate(
    req: UserOptionUpdateRequest
  ): Observable<UserOptionUpdateResponse> {
    return this.protocolService
      .call(
        SVC_TYPE_INFO,
        SSVC_TYPE_INFO_USER_OPTION_UPD_REQ,
        ...encodeUserOptionUpdate(req)
      )
      .pipe(
        take(1),
        map(res => decodeUserOptionUpdate(res))
      );
  }
}